Pair of filter cartridges for a powered air-purifying respirator



FIG. 1 is a perspective view of a pair of filter cartridges for a powered air-purifying respirator, showing the new design in solid lines.

FIG. 2 is a top view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a bottom view thereof.

FIG. 7 is a rear view thereof; and,

FIG. 8 is a front view thereof, only illustrating the solid line portion of the design.

The broken line showing forms no part of the claimed design. The shading is provided only to illustrate contour; it is not indicative of texture, etc. 

The ornamental design for a pair of filter cartridges for a powered air-purifying respirator. 